initium Promi SD101 - Maximum Distance between Promi SdS

Promi SD™ User Manual ver 1.7
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DTR/DSR for loop-back & communications
CDC to check Bluetooth connection
3.5 Maximum distance between Promi SD™s
In open space, maximum distances between two Promi SD units were tested using
different types of Optional Antennas. Users may extend wireless link distance up to
1.2Km via Promi SD202 with Patch Antennas for both sides.
Model no. Antennas for two Promi SD units Max. Distance
Default Antenna - Default Antenna 30 meters
Default Antenna - Dipole Antenna 50 meters
Dipole Antenna - Dipole Antenna 80 meters
Patch Antenna - Dipole Antenna 150 meters
Promi SD101
Patch Antenna - Patch Antenna 300 meters
Default Antenna - Default Antenna 120 meters
Default Antenna - Dipole Antenna 150 meters
Dipole Antenna - Dipole Antenna 200 meters
Patch Antenna - Dipole Antenna 400 meters
Promi SD202
Patch Antenna - Patch Antenna 1,200 meters
For information on optional Antennas, refer to Chapter 5 Optional Antennas.